Hoisting apparatus.



Patented Oct. 2|, I902.

A E. WHITE. HOISTING APPARATUS.

(Application filed Apr. 1, 1902.I

2 Sheets-Sheet I.

(No Model.)

w: News arms co. mm'muwc I Patented Oct. -2|, I902.

A. E, WHITE.

HOISTING APPARATUS.

(Applicatioh filed Apr. 1,- 19o2.

(No Model.) 2 Sheeis8heat 2.

YHE Mamas PEYERS 0a.. wm'quma, wxsnmswn, n. c.

UNITED STATES PATENT OFFICE.

ALBERT E. WHITE, OF oLEvELAND, 01110.

HOISTING APPARATUS.

SPECIFICATION formingpart of Letters Patent No. 711,806, dated October21, 1902. Application filed April 1,1902 Serial No. 100,922. (No model.)

To all whom, it may concern.-

Beit known that I, ALBERTE.WHITE, acitizen of the United States,residing at Cleveland, in the county of Guyahoga and State of Ohio, haveinvented certain new and useful Improvements in Hoisting Apparatus; andI do declare that the following is a full, clear, and exact descriptionof the invention, which will enable others skilled in the art to whichit appertains to make and use the same.

My invention relates to hoisting apparatus; and the invention consistsmore particularly in a mechanism or apparatus which is adapted to thelarge and heavy work of loading and unloading vessels, barges, and thelike carrying ore, coal, and other like heavy and bulky freight andwherein there is usually a transfer to or from a car and in connectionwith which the apparatus serves to perform practically all the workthrough power appliances, substantially as shown and described, andparticularly pointed out in the claims.

Figure l is a side elevation and measurably diagrammatic view of acomplete apparatus shown in connection with a vessel out of whichfreight is being transferred, presumably to cars in waiting. Fig. 2 is aplan view of the apparatus alone. Fig. 3 is an enlarged section of theimmediatebase on which the tilting frame or crane rests and has alimited rotation on the carriage beneath. Fig. 4 is a plain frontelevation of the hoisting bucket or scoop and its supporting andoperating mechanism; and Fig. 5 is a vertical sectional elevationthereof on a line corresponding substantially to line X X, Fig. 4. Fig.6 is .a cross-section of the bucket supporting and operating beam and ofsheaves thereon looking down on line A A, Fig. 4. Fig. 7 is a plan viewof the friction-clutch or locking mechanism for the top controllingbrace or arm of the bucket-beam, serving and operating as hereinafterfully described.

In the foregoing views, Figs. 1 and 2, A represents a centrally-pivotedand balanced crane, the same having the shape of an irregular triangle,with its longer side 2 on top and its pivot-point at the apex or angleof the two shorter but equal sides 3. In construction I make thispreferably a truss-frame and of a size and strength proportioned to itsuse. In some instances it is a hundred feet extreme length, and it ispoised or balanced on its apex in such a way that even when loaded thecounterbalancing element will assert itself and be a prominent factor inthe raising and handling of the load. As here shown, the frame A restson a turn-table base B, enlarged in Fig. 3 and having a limited rotationon rollers or wheels I) beneath the same and themselves resting on theplatform-car O. The said car travels, as here shown, on a raised track Tof any length commensurate with its use, and the said track has suchelevation as will enable a train of cars to run beneath. In other casesit may be desired to lay the said track directly upon the ground, whichmay be done, or over a bridge or the like, as occasion may demand.

In Fig. 1 I show a cross-section of a vessel V, from which presumably acargo of loose freight is being transferred to cars in waiting beneathtrack T. To efiect this transfer, Iemploy a bucket O of a semiscoopshape, adapted to work from either edge and pivoted for operation on asuspensory rigid beam D. The said beam is preferably made of angle ironor steel, (shown in cross-section, Fig. 6,) so as to be inflexible andstrong and do positive work, especially in the loading of the shovel. Ithas a fixed length and a fixed pivot-shaft 10 on the end of frame A, onwhich it is adapted to swing within limits as the work may require, andits .upper end extends above the shaft 10 and is controlled by a rod orbar E. -This bar or arm is designed to have a shifting engagement withthe top of the tilting frame A, and any suitable means may be employedfor this purpose. In the present construction I employ a bellows-sidedinflatable holder G, having friction -bearings g, adapted to engage theparallel rails F in any position between their ends, and the said bar orarm E is pivoted to or on said holder. This mechanism serves to hold thebeam D rigidly in any chosen position for filling the shovel and so thatit cannot move while the shovel is taking its load. Then the holder Grmay be released, and it may be made to grip at any time necessaryinswinging. the load or the empty shovel out or in. If free and the frameA is'tilted to take the load out for discharge, the'beam will hold avertical position all the time by reason of the weighted shovel thereon,and it can only be given an inclined position by locking holder G" forthis purpose. Whether looking is needed depends entirely onconditionsas, for example, the place from which the bucket is to bewithdrawn or to which it is to be delivered. In some cases the beam mayhave to be inclined to get in or out. The bucket itself is controlledfrom a suitably constructed and located engine H, preferably on theframe A, working With sprocket-chains 7 over wheels 9 on short shaft 10and thence by chain 11 to sheaves 12 and 13, Figs. Land 5. The sheave 13is rigid with shaft 14:, which is rigid with bucket C, so that when saidsheave is rotated it forcibly rotates the shovel also, and the shaft hasits bearings in the lower end of beam D and in the braces 15 at itsends. The extremity of beam D is bifurcated to receive the wheel 13between its forks and confine it centrally on its shaft, and the chain11 works within confiningsheaves 16 above and below. The wheels 9 areoutside the beam D on shaft 10, and the wheel 12 is located within thebeam in line with wheel 13 below and also rigid with its shaft. Thus itoccurs when the engine or motor H is operated power is transmitted bysaid chains and wheels to the bucket O first to give it tilted positionto set it to take a load and then to forcibly drive it into the materialand give it a load. This done, and it is the work of an instant, theload is carried away and discharged by again tilting the shovel throughits power actuating mechanism, and so on. In all the work the grip orholder G is used at such times as it is needed; but the manipulation ofthe bucket is chiefly through its power con nections from engine ormotor H. The tilting and handling of the carrying frame or crane A iscontrolled by another engine or motor L, likewise located on said frameand working by chain 17 from the drum thereon to the car 0, to which thechain is attached. A suitable sheave or roller 18 on the point of frameA carries chain 17. Thus it occurs that whenever the frame A may be onthe car which carries it the conditions under which engine L is Workingwill always be the same.

It will be noticed that the shovel-beam has a fixed operating length, isrigid throughout, and works positively at all times; also, that theshovel has its pivot on this beam and has all its operations about itspivot controlled by direct power appliances, suitable cable or chainmechanism serving the purpose, as here shown. Any kind of cable,

whether chain or other kind that is practical, maybe used.

A peculiarity ofthis construction lies in the balancing arrangement ofthe crane, whereby the weight of the beam and shovel at one end issubstantially overcome by the weight of the engine and its accompanyingmechanism on the other or on the other side of its pivot. This enablesme to utilize nearly all my power for lifting the load and withoutexpending it on the dead-weight of the shovel and beam, which in anapparatus of this kind may amount to several tons, and I not onlyeconomize in power, but also save time and greatly facilitate thehandling of the load, owing to the absence of dead weight, as abovedescribed. A shifting weight 20 on frame member 2 may be furtherutilized to balance the whole.

What I claim is-' 1. In hoisting apparatus, a substantiallycounterbalanced crane of triangular shape pivoted on its middle angle,and a rigid carrying-beam and bucket suspended from one side of itspivot, and balancing mechanism on the other side of its pivot comprisingan engine for operating the crane, substantially as described.

2. The bucket and the rigid beam supportin g the same, a transverseshaft rigid with the bucket rotatable in said beam, and powerconnections to rotate said shaft and thereby operate the bucket,substantially as described.

3. The crane, a rigid beam pivotally supported thereon, the bucket andits shaft rotatably supported on the lower end of said beam, apower-engine and cable mechanism from the engine to said shaft foractuating the bucket, substantially as described.

. 4. The rigid beam and the frame on which it is pivoted, in combinationwith the bucket, a shaft extending through the lower end of the frameand havingthe bucket rigid therewith, a sprocket-wheel on said shaft anda sprocket-chain to rotate it, and power connections for said sprocketchain, substantially as described.

5. In hoisting apparatus, a pivotally-supported bucket-carrying beam, abucket having both its edges constructed to dip into the material andpivoted at its center and top on said beam, and power mechanism to rockthe bucket on its pivot,substan tially as described.

6. In hoisting apparatus, the crane and the bucket-supporting beampivoted thereon, the bucket pivoted on the lower end of the beam, a setof sprocket-wheels and a chain operatively connected with the bucket andsupported in said beam, and an engine and chains to convey power to saidsprocket-wheels, substantially as described.

7. The pivoted tilting crane and the rigid beam pivoted thereon, abucket on the lower end of said beam, a shifting controlling-barconnecting said beam and crane, a lockingholder for said bar, and meansto operate said nections to operate said frame and beam and [O holder tolock said bar, beam and crane rigsaid bucket, respectively;substantiallyas de idly together, substantially as described. scribed. 4

8. In hoisting apparatus, a tilting frame Witness my hand to theforegoing specifi- 5 having a rigid beam pivoted thereon, a lockcationthis 13th day of March, 1902.

ing-bar connecting said beam and frame hav- ALBERT E. WHITE. ingmechanism to effect locking and unlock- Witnesses: ing, a bucket uponsaid beam adapted to be i R. B. MOSER,

independently tilted, and separate power con- JOSEPH R. OLDHAM.

